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Piezospectroscopy Measurements of Thermal Barrier Coating Systems

Manero, Albert and Siddiqui, Sanna and Sofronsky, Stephen and Knipe, Kevin and Lacdao, Claudine and Smith, Matthew and Wischek, Janine and Meid, Carla and Karlsson, Anette M. and Bartsch, Marion and Raghavan, Seetha (2014) Piezospectroscopy Measurements of Thermal Barrier Coating Systems. 38th International Conference on Advanced Ceramics and Composites, 26.-31. Jan 2014, Daytona, FL, USA.

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Abstract

This research presents results for spectroscopy studies on thermal barrier coating layered systems. The primary study was conducted on a nickel superalloy cylindrical sample, with a multi-layer system deposited via electron beam physical vapor deposition (EB-PVD) including a thermally grown oxide (TGO) and partially stabilized zirconium oxide (YSZ) top coat. Selected spectroscopy studies were investigated via Raman Spectroscopy and Photo-Luminescence Spectroscopy with a 532 nm diode laser and Renishaw Ramascope via a 10x fiber optic probe. Readings were collected around the circumference in 10 degree increments, and yielded the variation of the materials’ characteristic peaks from which a residual stress profile was determined around the circumference for multiple layers. The findings uniquely show the stress profile of the YSZ and TGO during early cycling, and present variations around the circumference for varying locations in the testing area. Results showcase the degree of uniformity during this stage of development. The outcomes of these studies will advance the understanding of TBC residual stress during early cycling for cylindrical specimens, and provide valuable material response information for system modeling.

Item URL in elib:https://elib.dlr.de/88315/
Document Type:Conference or Workshop Item (Speech)
Title:Piezospectroscopy Measurements of Thermal Barrier Coating Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Manero, AlbertUniversity of Central Florida, Orlando, FL, USAUNSPECIFIED
Siddiqui, SannaUniversity of Central Florida, Orlando, FL, USAUNSPECIFIED
Sofronsky, StephenUniversity of Central Florida, Orlando, FL, USAUNSPECIFIED
Knipe, KevinUniversity of Central Florida, Orlando, FL, USAUNSPECIFIED
Lacdao, ClaudineCleveland State University, Ohio, USAUNSPECIFIED
Smith, MatthewCleveland State University, Ohio, USAUNSPECIFIED
Wischek, Janinejanine.wischek (at) dlr.deUNSPECIFIED
Meid, Carlacarla.meid (at) dlr.deUNSPECIFIED
Karlsson, Anette M.Cleveland State University, Ohio, USAUNSPECIFIED
Bartsch, Marionmarion.bartsch (at) dlr.deUNSPECIFIED
Raghavan, SeethaUniversity of Central Florida, Orlando, FL, USAUNSPECIFIED
Date:28 January 2014
Refereed publication:No
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:piezospectroscopy, Thermal Barrier Coatings, stress
Event Title:38th International Conference on Advanced Ceramics and Composites
Event Location:Daytona, FL, USA
Event Type:international Conference
Event Dates:26.-31. Jan 2014
Organizer:American Ceramic Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation Methods (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Experimental and Numerical Methods
Deposited By: Bartsch, Dr.-Ing. Marion
Deposited On:24 Feb 2014 07:33
Last Modified:24 Feb 2014 07:33

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